EP 3522070 A4 20200624 - LINE-OF-SIGHT TRACKING DEVICE AND HEAD-MOUNTED DISPLAY DEVICE
Title (en)
LINE-OF-SIGHT TRACKING DEVICE AND HEAD-MOUNTED DISPLAY DEVICE
Title (de)
SICHTLINIENVERFOLGUNGSVORRICHTUNG UND KOPFMONTIERTE ANZEIGEVORRICHTUNG
Title (fr)
DISPOSITIF DE SUIVI DE LIGNE DE VISÉE ET DISPOSITIF DE VISIOCASQUE
Publication
Application
Priority
- CN 201710208503 A 20170331
- CN 2018080811 W 20180328
Abstract (en)
[origin: EP3522070A1] An eye tracking device and a head-mounted display device are provided. The eye tracking device includes at least one infrared camera, at least one infrared light group and a control circuit. The control circuit is electrically connected with the at least oneinfrared light group. Each of the at least one infrared light group includes at least two infrared lights which are arranged at different locations. Each of the at least one infrared camera is configured to collect an eye image of a user when the at least two infrared lights are turned on. The control circuit is configured to respectively control the number of infrared lights achieving effective operating brightness in each infrared light group when the eye tracking device performs iris recognition and eye tracking, and the effective operating brightness refers that a brightness is not less than a threshold brightness. The eye tracking device can rapidly realize user identify when performing the iris recognition and can more accurately acquire a direction of line-of-sight of the user when performing eye tracking.
IPC 8 full level
G06F 21/32 (2013.01); G06V 10/141 (2022.01); H04N 5/33 (2006.01)
CPC (source: CN EP KR US)
G02B 27/0093 (2013.01 - US); G02B 27/0172 (2013.01 - US); G06F 3/013 (2013.01 - US); G06F 21/32 (2013.01 - CN EP KR); G06V 10/141 (2022.01 - EP US); G06V 40/19 (2022.01 - CN EP KR US); H04N 5/33 (2013.01 - US); H04N 23/20 (2023.01 - CN EP KR); H04N 23/71 (2023.01 - US)
Citation (search report)
- [XYI] US 2016363995 A1 20161215 - ROUGEAUX SEBASTIAN [AU]
- [I] CN 105608436 A 20160525 - LENOVO BEIJING CO LTD
- [Y] US 2015205348 A1 20150723 - NORTRUP EDWARD H [US], et al
- [Y] US 7986816 B1 20110726 - HOANCA BOGDAN [US], et al
- See also references of WO 2018177311A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3522070 A1 20190807; EP 3522070 A4 20200624; AU 2018243092 A1 20190606; CA 3042617 A1 20190502; CA 3042617 C 20210608; CN 106874895 A 20170620; CN 106874895 B 20190205; JP 2019537149 A 20191219; JP 6837142 B2 20210303; KR 102226447 B1 20210312; KR 20190108603 A 20190924; US 11143869 B2 20211012; US 2020012105 A1 20200109; WO 2018177311 A1 20181004
DOCDB simple family (application)
EP 18776251 A 20180328; AU 2018243092 A 20180328; CA 3042617 A 20180328; CN 201710208503 A 20170331; CN 2018080811 W 20180328; JP 2019527512 A 20180328; KR 20197024516 A 20180328; US 201816347580 A 20180328